Seiko Cal. 6621 - 836

The Seiko 6621-836 represents an important milestone in Seiko's 1975 lineup. The Inner Rotating bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-a49aafa27f86]

Also known as: Silverwave, Emperor

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

12.1mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

White

Jewels

36j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1975

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